1916.] 201 



Catasetum {cf. Ent. Mo. Mag., XLIX, p. 33). Mr. Weiss, I believe, in- 

 tends to publish in an American journal an account of the life-history 

 of the species sent by him, the Dionjmellus apparently doing consider- 

 able damage to orchids. The insects here described will be presented 

 to the British Museum. 



Gliolus cattleyae, a. sp. 



Oblong-rhomboidal, robvxst, black, opaque, the prothoracic tubercles and the 

 rostrum somewhat shining; variegated with dense patches of rather large, 

 imbricate, oval, white scales, which form an oval spot on the median basal lobe 

 of the prothorax, a similar spot on the scvitellum, a common elongate-sub- 

 quadrate, post-scutellar patch (enclosing a square bare spot ) and two latei-ally 

 connected fasciae on the elytra (one just below the base, narrow, confluent with 

 square basal patch, the other sub-apical, broad, interrupted, and extending 

 obliquely forwards to the shoulder), a transverse sinuate fascia on the front of 

 the prosternum, and various spots along the sides of the meso- and metastemum 

 and abdomen, and an interrupted line down the middle of the latter ; the tibiae 

 and tarsi thickly, and the bases of the intermediate and posterior femora 

 sparsely, clothed with coarse yellowish hairs. Head rugosely punctate ; rostrum 

 long, curved, modei-ately stout, widened at the tip, coarsely punctate, the 

 antennae inserted at the middle. Prothorax transverse, convex, rounded at the 

 sides, compressed to^^•ards the apex, and rapidly narrowed anteriorly ; studded 

 with small, oblique, prominent, scattered tiibercles. Elytra sub-triangular, at 

 the base much wider than the prothorax ; closely seriato-foveolate, the inter- 

 stices narrow and unevenly raised, those siu'rounding the common sub-quadrate 

 basal patch (which appears depressed) very prominent and transversely 

 confluent. Anterior coxae somewhat widely separated. Legs long, stout, the 

 femora sharply dentate towards the apex. Length (excl. rostr.) 11^, breadth 

 05 mm. 



Hah. : Tropical America. 



Found breeding in the bulbs of Caftleya (jigas, and also seen 

 feeding on different parts of the same plant. The description is taken 

 from a very fresh specimen ( ? ?) sent by Mr. Weiss, this agreeing 

 preciselj'^ with Mr. Barber's photograph, except that the spot on the 

 prothorax is wanting in his insect. The nearest allied forms are 

 C.forbesi Pasc, bred in London from an Ecuador orchid, and C. nigro- 

 notatus and C. nigromaculatvs Champ., from Nicaragua and Panama, 

 all of which have the elytra differently marked and less uneven, and the 

 prothorax conspicuously maculate and studded with larger tubercles. 



DiorymeUus laevimargo, n. sp. 



Rhomboidal, narrow, shining, black ; glabrous above, the pvmctures of the 

 under siu-face and legs each bearing a minute whitish scale. Head finely 

 punctate, transversely grooved between the eyes ; rostrum moderately long, 



